Today I went with a friend of mine to the Google campus (known as the GooglePlex) to pick up his Google Glass.
MyPOV
It's certainly an interesting experience. It's really impressive how clear the display is and how good the camera is. The audio is a bit quiet. I would not call them "comfortable", but they are not invasive. I imagine after a day or two you probably forget you're wearing them.
Google Glass does not do anything my (Google) phone can't do (pics, video, directions, search, weather, stocks, etc), it just does it hands-free. It's important to note, this is NOT augmented reality yet, meaning the data is not yet being overlaid on top of the real world, just on a little display at the side of the glasses. I am sure there will be some amazing apps when these are really released. I'd love to see a golf GPS app!
My overall take is that the ability to have information easily accessible (or recordable) is clearly important. Having it displayed contextually (without the need to search) based on what you're seeing will be really powerful. Is Google Glass the final answer? Of course not. At some point we'll view information displayed on your own glasses or contact lenses, via holograms in the air in front of us, or eventually embedded directly into our eyes/brains. We'll look back at Google Glass similar to how we now view the original mobile phone (Motorola DynaTAC) or tablets (Apple Newton).